Here there are many layers of stones arranged in even rows. Due to their limited exposure to seawater, the stones here are blue and are stacked in layers.
The expansion was done to promote tourism in Tuy An District, Phú Yên Province. The stones are hexagonal and located opposite the well-known Da Dia Reef.
With this discovery, Da Dia Reef will expand to include many beautiful cliffs formed by rows of hexagonal stones. This offers the opportunity to attract more tourists and provide new materials to researchers studying the formation of this unique landscape.
